Volume 2, 2011Progress in Propulsion Physics
|Page(s)||297 - 316|
|Section||Liquid Rocket Propulsion|
|Published online||01 October 2012|
Integrated method for combustion stability prediction
Purdue University West Lafayette, Indiana, USA
Major obstacles in overcoming combustion instability include the absence of a mechanistic and a priori prediction capability, and the difficulty in studying instability in the laboratory due to the perceived need for testing at the full-scale pressure and geometry to ensure that important processes are maintained. A hierarchal approach toward combustion instability is described that comprises experiment, analysis, and highfidelity computation to develop combustion response submodels that can be used in engineering-level design analysis. The paper provides an illustrative example of how these elements are used to develop a prediction for growth rates in model rocket combustors that generate spontaneous longitudinal combustion instabilities.
© Owned by the authors, published by EDP Sciences, 2011